Every field, including Christianity, has its jargon.
There are two types of jargon:

Words or phrases unique to that field, e.g., a legal writ

Common words or phrases that have a special meaning in that field, e.g.,
in criminal law a "not guilty" verdict means "the
government failed to prove its case beyond a reasonable doubt."

"Unique words" do not present a special problem because
the reader realizes he doesn't understand the word.

However, "special meaning" words can present a major
problem because the reader thinks he understands the word but
in fact he doesn't. The study of the Principles
of Textual Interpretation is called hermeneutics
and included the study of specialized jargon.

Here are some words and phrases that have unique meanings in
a Christian context. The secular definition is shown below in black and
the Christian definition in navy blue. Secular
definitions are based on the American Heritage Dictionary. The Christian
definitions are not excerpts from the Bible.

JUSTIFY, JUSTIFICATION

1. To demonstrate or prove to be just, right, or valid. 2. To declare
free of blame; absolve. 3. Law. a. To demonstrate sufficient legal reason
for (an action taken). To free a human
being of the guilt and penalty attached to grievous sin. Used only of God.

ABIDE

1. To put up with; tolerate. 2. To wait patiently for. 3. To
be in store for; await. 4. To withstand.
To live with, to dwell among

FEAR (OF THE LORD)

1. A feeling of agitation and anxiety caused by the presence or imminence
of danger. 2. A feeling of disquiet or apprehension. 3. A reason
for dread or apprehension. 4. To be afraid or frightened of. 5.
To be uneasy or apprehensive about. 6. To consider probable; expect. "Fear of the Lord" means to hold
God in extreme respect, reverence and awe. It does not
mean to regard God with mortal dread and absolute terror.

LOVE

1. A deep, tender, ineffable feeling of affection and solicitude toward
a person, such as that arising from kinship, recognition of attractive qualities,
or a sense of underlying oneness. 2. A feeling of intense desire and
attraction toward a person with whom one is disposed to make a pair; the
emotion of sex and romance. 3.a. Sexual passion. b. Sexual intercourse.
c. A love affair. 4. An intense emotional attachment, as for a pet or
treasured object. 5. A person who is the object of deep or intense affection
or attraction; beloved. Often used as a term of endearment. 6. An expression
of one's affection. 7.a. A strong predilection or enthusiasm. b. The
object of such an enthusiasm. 8. Love. Mythology. Eros or Cupid.
9. Often Love. Theology. Charity. 10. Love. Christian Science. God.

1. To have a deep, tender, ineffable feeling of affection and solicitude
toward (a person). 2. To have a feeling of intense desire and attraction
toward (a person). 3. To have an intense emotional attachment to.
4.a. To embrace or caress. b. To have sexual intercourse with. 5. To
like or desire enthusiastically. 6. Theology. To have charity for.
7. To thrive on; need. --intr. To experience deep affection or intense desire
for another. --idioms. for love. Out of compassion; with no thought for
a reward. for love or money. Under any circumstances. Usually used in negative
sentences. for the love of. For the sake of; in consideration for. no love
lost. No affection; animosity.